class_docstr: Barrier(wires)
  The Barrier operator, used to separate the compilation process into blocks or as a visual tool.
  
  **Details:**
  
  * Number of wires: AnyWires
  * Number of parameters: 0
  
  Args:
      only_visual (bool): True if we do not want it to have an impact on the compilation process. Default is False.
      wires (Sequence[int] or int): the wires the operation acts on
code: def simplify(self):
      if self.only_visual:
          if len(self.wires) == 1:
              return qml.Identity(self.wires[0])
          return qml.prod(*(qml.Identity(w) for w in self.wires))
      return self
  
imports: from copy import copy
  import pennylane
  from pennylane.operation import AnyWires, Operation
  from pennylane.wires import Wires
label_desc: Use image node_id 7 for calling the Barrier obj's underlying member method code with example usage: obj.simplify() and returns: self, qml, qml